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Stack 7 Fact Fam+-

Stack 7 Fact Fam +-

QuestionAnswer
7+7 7+7=14
14-7 14-7=7
7+8 7+8=15
8+7 8+7=15
15-7 15-7=8
15-8 15-8=7
7+9 7+9=16
9+7 9+7=16
16-7 16-7=9
16-9 16-9=7
7+10 7+10=17
10+7 10+7=17
17-7 17-7=10
17-10 17-10=7
7+11 7+11=18
11+7 11+7=18
18-7 18-7=11
18-11 18-11=7
7+12 7+12=19
12+7 12+7=19
19-7 19-7=12
19-12 19-12=7
Created by: dmahoney
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